When Shivan Sand-Mage enters the battlefield, choose one —
• Remove two time counters from target permanent or suspended card.
• Put two time counters on target permanent with a time counter on it or suspended card.
Suspend 4 —
(Rather than cast this card from your hand, pay its suspend cost and exile it with four time counter(s) on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost. If it's a creature, it has haste.)